is this normal?

is this normal?

[Mircea Damian]

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Hello,

I'm using zsh-3.1.5 on many x86 machines. All have the same behavior:

dmircea@secu:~% cd /
dmircea@secu:/% cd ../bin 
dmircea@secu:/../bin% echo $ZSH_VERSION 
3.1.5
dmircea@secu:/../bin% pwd
/../bin
dmircea@secu:/../bin% 


Is that '/../bin' canonical? Do I miss something here?

-- 
Mircea Damian
Network Manager
dmircea@roedu.net, dmircea@lbi.ro, dmircea@kappa.ro
MD65-RIPE, MD2225, MD1-6BONE
Phone: +40-1-4115246

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Re: is this normal?

[Larry P . Schrof]

This brings up an interesting point.

First, remember that in the / directory, the file .. just points back
to / itself.

Now, I tried the following quick experiment.

Things to note:

- I use %~ in my RPROMPT string.

- $PWD seems to contain the 'pure' value of the current directory,
  pwd seems to heed any directory-processing options you have set
  (IE. chase_links)

- Like the man page says, indeed, the various escape sequences expand
  to the 'pure' value of $PWD.

lyric[79] cd /                                                                ~
lyric[80] cd ../etc                                                           /
lyric[81] pwd                                                           /../etc
/../etc
lyric[82] echo $PWD                                                     /../etc
/../etc
lyric[83] cd /                                                          /../etc


lyric[84] setopt chaselinks                                                   /
lyric[85] cd ../etc                                                           /
lyric[86] pwd                                                           /../etc
/etc
lyric[87] echo $PWD                                                     /../etc
/../etc
lyric[88] echo $ZSH_VERSION                                             /../etc
3.1.5

One way to resolve the quirkiness (but not necessarily the only) is to
do command substitution in the PROMPT string by running pwd. (Don't forget
to set the PROMPT_SUBST option) Note that for me, RPROMPT is the variable
to change, since that's where I display the current directory.

lyric[93] RPROMPT='$(pwd)'                                              /../etc
lyric[94]                                                                  /etc

This is only a quick fix for PROMPT-related issues. Other things such
as the directory stack still receive 'pure' values of $PWD.

Anyone else's thoughts?

On Sun, Feb 28, 1999 at 09:11:59PM +0200, Mircea Damian wrote:
> 
> Hello,
> 
> I'm using zsh-3.1.5 on many x86 machines. All have the same behavior:
> 
> dmircea@secu:~% cd /
> dmircea@secu:/% cd ../bin 
> dmircea@secu:/../bin% echo $ZSH_VERSION 
> 3.1.5
> dmircea@secu:/../bin% pwd
> /../bin
> dmircea@secu:/../bin% 
> 
> 
> Is that '/../bin' canonical? Do I miss something here?
> 
> -- 
> Mircea Damian
> Network Manager
> dmircea@roedu.net, dmircea@lbi.ro, dmircea@kappa.ro
> MD65-RIPE, MD2225, MD1-6BONE
> Phone: +40-1-4115246

Re: is this normal?

[Mircea Damian]

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On Mon, Mar 01, 1999 at 10:08:24AM -0600, Larry P . Schrof wrote:
> First, remember that in the / directory, the file .. just points back
> to / itself.
This is normal. That is why this happens:

root@taz:~# cd /
root@taz:/# cd ../bin/..
root@taz:/..#                      <-- here /.. == /

But then it looks very odd to me  when I try multiple "../" constructions
like:


root@taz:~# cd /
root@taz:/# cd ../../bin
root@taz:/bin#                                  <-- why not /../../bin
root@taz:/bin# cd /
root@taz:/# cd ../../../bin
root@taz:/../bin# cd /
root@taz:/# cd ../../../../bin
root@taz:/bin#

As far as I see this happens only when the number of "../" is odd so I
think that this is a bug!



> lyric[93] RPROMPT='$(pwd)'                                              /../etc
> lyric[94]                                                                  /etc
As you said, this is only a quick but dirty fix. :-(


-- 
Mircea Damian
Network Manager
dmircea@roedu.net, dmircea@lbi.ro, dmircea@kappa.ro
MD65-RIPE, MD2225, MD1-6BONE

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Re: is this normal?

[Sweth Chandramouli]

On Mon, Mar 01, 1999 at 07:44:55PM +0200, Mircea Damian wrote:
> root@taz:/# cd ../../../../bin
> root@taz:/bin#
> 
> As far as I see this happens only when the number of "../" is odd so I
> think that this is a bug!

	especially since it also does not happen at all for "./".

	-- sweth.

-- 
Sweth Chandramouli
IS Coordinator, The George Washington University
<sweth@gwu.edu> / (202) 994 - 8521 (V) / (202) 994 - 0458 (F)
<a href="http://astaroth.nit.gwu.edu/~sweth/disc.html">*</a>